Machine for dispensing viscous substances.



N0. 6425082. Patented Ian. 30, |900. W. W. CARTER.

MACHINE FDR DISPENSING VISCDUS SUBSTANCES.

(Application led May 6, 1899.)

(No Model.)

TTT@ STATES PATENT Ormea.

VILLIAM lV. CARTER, OF NEEDHAM, MASSACHUSETTS, ASSIGNOR TO HIlVL SELF, CHARLES I-I. CARTER, AND FRANK B. CARTER, OF SAME PLACE.

FOR DISPENSING VISCOUS SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 642,082, dated January 30, 1900. Application tiled May 6,1899- Serial No. 715,827. (No model.)

To (all zow'nt it may cou/cern:

Be it known that 1, VILLIAM W. CARTER, a citizen of the United States, residing at Needham, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Dispensing Viscous Substances; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to an improvement in machines for dispensing viscous substances.

Myinvention is particularly adapted to dispensing viscous soap, the obj ect being to produce a device which will dispense a sufficient quantity for one use and prevent waste or theft, being at the same time cleanly and easily manipulated and refilled.

To the above end my invention consists generally of a receptacle for the soap or other substance and means for applying pressure thereto and automatically relieving the pressure therefrom when a small quantity has been expelled.

In the accompanying drawings, illustrating the preferred form of my invention, Figure 1 is a sectional elevation, and Fig. 2 is a bottom plan of the cover.

A hollow receptacle 1, preferably cylindrical in form, mounted upon a base 2, which may be secured to the slab 3 of a washstand or other convenient support, is adapted to receive a quantity of the substance to be dispensed. It is provided with an outlet for the substance, which in the illustrated form is shown as a tube 4, extended outward from the side of the receptacle 1 at or near its bottom, although it may be arranged in any convenient manner, as its position or form constitutes no essential ingredient of my invention. In the form shown, however, the tube et is screwed through the side of the receptacle and projected a short distance thereinto, thereby forming a support for the substancecontaining shells, shown as a cylinder of paper 5, in which I contemplate inserting the substance to be dispensed into the receptacle 1.

Means is provided for applying pressure to the substance for expelling it from the receptacle for use and having provisions whereby the pressure is applied and withdrawn or relieved, so that after each application of pressure to expel a modicum of the substance there follows a withdrawal or relief of the pressure to prevent the expulsion of the substance between the times of use by its slow expansion under the pressure if left applied. In this manner not only is waste obviated, but, more important still, when the device is used to dispense soap it prevents the exposure of the soap to the air and the consequent objectionable drying and hardening thereof, and I prefer not only to relieve the pressure on the substance, but to apply suction thereto, so that it shall be sucked back from the outlet away from the free access of the air. To the above ends I have embodied such means in the machine of the drawings in a piston G, closely fitting the inside of the papercylinder 5 and adapted to be pressed against the substance thereunder bya rod 7, screw-threaded through the piston 6 and adapted to be rotated to effect a gradual progressive movement of the piston and to be moved longitudinally to effect a temporary application of pressure to the substance by forcing the pis` ton vertically downward. A handle 8 is attached to the rod 7, by means of which it may 4be rotated. Attached to the rod 7 are arms 9, preferably bearing on their ends rollers 10, which are engaged by the cam-surfaces 11, projected downward from the under side of the cover 12 for the receptacle 1,which is preferably screwed on the upper end of the receptacle. A spring 13 is placed in the recess 14 in the upper side of the cover 12 and operates normally to raise the rod 7 byengagement with the pin 15, driven therethrough. The recess and spring are inclosed by the cap 16. The parts `thus described may be assembled as follows: The rod 7 is passed upward through the cover 12, the spring 13 is dropped over it, and the pin 15 is driven through it. Then the cap 1G is screwed onto the cover 12, and the handle 8 is attached to the upper end of the rod 7.

The operation of the machine is as follows: The machine is charged by filling the receptacle with the substance to be dispensed, and

IOO

preferably by inserting a cylinder of paper 5, Iilled therewith, in the receptacle, the lower edge of the cylin'der resting on the inwardlyprojecting end of the tube 4. Then the piston 6 is screwed up the rod '7 as far as it will go, the rod 7 is forced down into the substance, and the cover l2 screwed onto the receptacle. A few turns of the handle will force the substance into the bottom of the receptacle and out to the mouth of the tube, andthe device is then ready for use. A turn of the handle S will cause a slight progressive movement of the piston 6, and at the same time the riding of the arms 9 over the cam-surfaces 1l will cause a vertical movement of the rod 7 downward, thus forcing the piston bodily downward and applying an expulsive pressure to the substance thereunder and expelling a modicumthereofsufticientforoneuse. When the arms 9 pass the crowns of the cam-surfaces ll, the spring 13 acts to lift the rod 7, and thereby withdraw or relieve the pressure of the piston 6 from the substance and at the same time lifting the piston bodily upward and acting to suck the substance in the tube back toward the receptacle.

It is to be understood that my invention is not limited to the specific embodiment thereof illustrated in the accompanying drawings, as the same is susceptible of being embodied in many different forms without departure from the spirit of my invention.

v Having thus described my invention, I claim as broadly novel and desire to secure by Letters Patent of the United Statesl. In a machine for dispensing viscous substances, the combination with a receptacle for the substance provided with a suitable outlet, of means for applying pressure to, and withdrawing it from, the substance, and actuating mechanism for said means, acting when continuously operated in one direction to successively actuate said means to apply pressure t0 and withdraw it from the substance, substantially -as described.

f 2. In a machine for dispensing viscous substances, the combination with a receptacle for the substance provided with a suitable outlet, of means for applying pressure and suction to the substance, and actuating mechanism for said means, acting when continuously operated in one direction to successively actuate said means to apply pressure and suction to the substance, substantially as described.

3. In a lnachine for dispensing viscous substances, the combination with a cylindrical receptacle for the substance provided with an outlet-tube projected outwardly therefrom and inwardly thereinto, the inwardly-projecting end forming a support for the substancecontaining shell, of means for applying pressure to the substance, substantially as described.

4. In a machine for dispensing viscous substances, the combination with a receptacle for the substance provided with a suitable outlet, of a piston for applying pressure to and withdrawing pressure from, the substance, and means for imparting to the piston a gradual progressive movement and longitudinal' reciprocations, substantially as described.

5. In a machine for dispensing viscous substances, the combination with a receptacle for the substance provided with a suitable outlet, of a piston, a rod screw-threaded therethrough, a spring normally tending to raise the rod, and a cam-surface, said rod having an arm adapted to engage said carn-surface, whereby rotation of said rod will impart a gradual progressive movement and longitu dinal reciprocations to said piston, substantially as described.

6. In a machine fordispensing viscous substances, the combination with a receptacle for the substance provided with a suitable outlet, of means for applying pressure to the substance and actuating mechanism therefor acting when continuously operated in one direction to expel the substance in successive modicums, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

IV ILLIAM IV. CARTER.

Witnesses:

EVERETT F. DAMoN, HORACE VAN EVEREN. 

